API Replacement Test Tubes for Aquarium Test Kits 6 Pack Bundle
Original price was: $13.79.$10.39Current price is: $10.39.
Price: $13.79 - $10.39
(as of Oct 06, 2025 08:24:58 UTC – Details)
Replacement Test Tubes compatible with the Aquarium Pharmaceuticals (API) Test Kits. Includes cap. 6 Pack.
Is Discontinued By Manufacturer : No
Package Dimensions : 6.85 x 4.17 x 1.1 inches; 0.63 ounces
Item model number : 5346906760
Date First Available : August 2, 2018
Manufacturer : API
ASIN : B07G4NGMM8
Best Sellers Rank: #21,029 in Pet Supplies (See Top 100 in Pet Supplies) #23 in Aquarium Test Kits
Customer Reviews: 4.4 4.4 out of 5 stars 2,599 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Replacement Test Tubes compatible with the Aquarium Pharmaceuticals (API) Test Kits
Includes caps
6 Pack
Customers say
Customers find these test tubes to be perfect for aquaponics and fish tanks, with positive feedback about their functionality and authenticity. However, the tubes are made of plastic rather than glass, and customers report they are very fragile and break easily. While some customers consider them a great buy for the price, others find them not worth the cost.
13 reviews for API Replacement Test Tubes for Aquarium Test Kits 6 Pack Bundle
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Original price was: $13.79.$10.39Current price is: $10.39.
James R. Norton –
Good but fragile
While using the test tubes that came with my aquarium test kit, all of the tubes broke while trying to remove the plastic cap. No matter how easy you try to remove the cap, it will eventually break. Still, these are great little test tubes.
Peter Asaro –
Picture states these are 6 Glass tubes with caps. But they are really plastic.
The picture shows 6 glass tubes with caps… however, they are plastic. Not a big deal, I just thought I was getting glass tubes just like the original ones that came with the test kit.
Nikki Rebel –
Great addition to any aquarium test kit
A must have for those doing multiple water tests for the aquarium, or as a replacement for the accidental breakage of one.
Patrick A Johnson –
Good test tubes
There fine.
Michaela J –
One broken
As advertised, but one came broken.
Brian Kosick –
Plastic not glass
Not great, yeah i got them, the pictures show the glass tube ones. The Product details says “plastic” plastic ones have a slighly larger our diameter and dont fit properly into the hilser that I have.Will they work for testing water. Yes. Do I feel like Im the victim of a baitNswitch yes. I suppose im the one to blame for assuming the pictures matched the product.
Family of Penguins –
Better than Plastic
I absolutely hate the plastic tubes that come in the master kits from API. I wish they all came with glass tubes. This was the solution I needed. Replaced all the plastic ones with the crappy lids with these.
Jeffrey Williams –
Slightly different from the originals but I believe they are legit
Itâs a little weird that they came loose in a bag but they seem legitimate. The detachable caps are different from the attached ones on the tubes that came with my master test kit, but the tubes are the same size.
Dave Anderson –
They are plastic not glass but that is what I expected.
Wilberth Silva –
Aunque no vinieron en un empaque “original”, sà son de la marca API. No sé si fue por cortesÃa, pero me trajeron 8 tubos en total (me dieron 2 de más) y eso se agradece bastante! Excelente servicio y excelente compra.
Cristian Jaimes –
Fue lo que pedÃ
Scott –
The product description says glass tubes but they are cheap plastic. It didnât even come in a box just a small bag no label nothing. I donât even think they are the same brand as depicted.
Lisa C –
Why list them as glass test tubes (along with photos of the glass test tubes) and then send plastic ones instead?